/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsEditorOnlyExp/Public/SkeletalMesh/SkeletonEditingTool.h
USkeletonEditingTool::EBoneSelectionMode & operator^= ( USkeletonEditingTool::EBoneSelectionMode & Lhs, USkeletonEditingTool::EBoneSelectionMode Rhs )